Bought a new control board for my gate opener, thinking the board was bad. The board I switched out was still good. What the problem was, is the 24v source on the board, was being grounded out on the safety sensors, so the fuse kept popping. Could not send back the new board. Do not know the model of opener, around 2003 vintage. Should be able to match with pictures.
14 day return, so purchase with confidence